``` But after injecting Spiritual Power, this Formation showed no response at all. In the Divine Sense vision of Mo Hua, this Formation possessed only a shape but lacked spirit and the flowing trajectories of Formation power. "What’s still missing..." But what could be missing? Demonic power? Where would he obtain demonic power? Surely he couldn’t cease being a "human" and study the Demonic Arts of the Demon Gate, cultivating through bloodshed like the Monster Beasts, feeding on Cultivators to nurture demonic power... Mo Hua shook his head. This Formation was temporarily useless... But soon after, Mo Hua grew curious again. He remembered that Bald Eagle, who hadn’t practiced Demon Techniques either and whose Spiritual Power was normal. Why could he draw such an eerie Four Symbols Formation? Or fundamentally speaking, what was the Four Symbols Formation actually used for? Mo Hua stroked his chin, pondering carefully... The Five Elements and Eight Trigrams possess a clear system, controlling natural forces like metal, wood, water, fire, earth, wind, rain, thunder, and lightning—the forces of nature from heaven and earth. What about the Four Symbols? It couldn’t just be for controlling demonic power, could it? If it involved controlling demonic power, wouldn’t one risk being eroded by it, leading to "deviation" in cultivation? Mo Hua always felt that he was still overlooking something... He compared the Four Symbols Monster Pattern and Eagle Pattern that Elder Master Xun had taught him with the basic, standard Four Symbols Array Patterns. Mo Hua, using Heavenly Secret Calculation, peered into the origins of the Patterns and independently deduced various changes in the Patterns. Suddenly, Mo Hua was startled, his gaze sharpened. In the Divine Sense Calculation, after several evolutions and comparisons of these two types of Patterns, they suddenly overlapped. The overlapping parts revealed some more originative Patterns! In a flash, Mo Hua realized something. The Four Symbols Array Patterns taught by Elder Master Xun were "Beast Patterns." And the Four Symbols Array Pattern on Bald Eagle’s head was a "Monster Pattern." Monsters and beasts were not entirely the same, but they shared the same origin. Similarly, Monster Patterns and Beast Patterns differed in form but their fundamental Patterns were the same. This meant that both Four Symbols Monster Patterns and Four Symbols Beast Patterns were built upon a more foundational and basic Four Symbols Array Pattern. Beneath the basics, there were yet deeper basics. Both Monster Patterns and Beast Patterns were fundamental variations of a more underlying "Four Symbols Array Pattern." Thus, they were all Four Symbols Formations, yet distinctly different. "So that’s how it is..." With a revitalized spirit, Mo Hua began to carefully compare, cautiously deducing the shared, basic Four Symbols Array Patterns through the overlapping trajectories in the Divine Sense Calculation. One by one, the Patterns were re-deduced, compared, and deciphered by Mo Hua, and drawn onto paper... More than half an hour later, Mo Hua finally finished calculating. He lined up these more basic, universal Four Symbols Array Patterns one by one, scrutinizing them. These Patterns were somewhat more abstract than the "Eagle Pattern" or "Beast Pattern." They resembled something more like... Chains or cages... As he continued looking, Mo Hua suddenly widened his eyes, his heart stirred. These Patterns... He had seen them before! Mo Hua quickly opened his Storage Bag and rummaged through it to find several wooden boards at the bottom, carved with extremely similar Patterns. Although the strokes were slightly different, and there were many discrepancies in the Patterns. But with his rich experience, Mo Hua could tell at a glance that these two types of Patterns indeed originated from the same lineage of Formation. These wooden boards were... Mo Hua muttered with a focused gaze: "Yu Er..." At that inn, when he rescued Yu Er from the kidnappers, Yu Er was locked in a box that was painted with a Formation. These boards were from the box that had confined Yu Er. The Formation on the boards had also trapped Yu Er, isolating her aura and perception, that strange "Lock" type of Formation. Mo Hua had thoroughly grasped some secrets through Heavenly Secret Tricky Calculation and Heavenly Secret Calculation, grasping some of the "life and death" relations, thus unlocking the Formation Lock. But it was more of a guess combined with what he borrowed, knowing the manifestations, but not the reasons behind them. The fundamental principles of the Formations, Mo Hua actually knew nothing about. Having joined the Sect later, with many lessons and unable to divert his attention elsewhere, Mo Hua gradually forgot these Patterns. He had not expected that now, by a strange twist of fate, he would again encounter the "Lock Formation" Patterns... But his understanding of these Patterns ended here. Because it was not a complete lineage, Mo Hua could only probe to this extent. He must find a way to acquire more of the same type of Four Symbols Formation or Four Symbols Array Patterns... Mo Hua furrowed his brows, his thoughts whirling rapidly. Four Symbols Beast Patterns... Four Symbols Monster Patterns, Sin Cultivator Bald Eagle... Unknown Lock Formation at the fundamental level, Yu Er... Human traffickers, Boss Jiang... Mo Hua remembered that the wanted notice issued by the Taoist Court contained Bald Eagle’s crimes: "Forcefully harvested female disciples, committed murder, and also worked as a human trafficker, selling young Cultivators as ’food’ to Demon Cultivators..." Having been a "human trafficker"... Mo Hua’s thoughts shifted slightly. Boss Jiang was a human trafficker, and so was Bald Eagle, selling Cultivators... Did this mean that Bald Eagle and Boss Jiang’s group might have had associations, either colluding in misdeeds together or even being part of the same gang altogether? The wooden box belonging to Boss Jiang had a Lock type Four Symbols Formation, Bald Eagle’s bald head had a Monster Pattern Four Symbols Formation... Could it be that the Formations they used came from the same source? A name suddenly popped into Mo Hua’s mind: Mr. Tu... This Mr. Tu, mentioned by Boss Jiang, sounded very mysterious. ```